Pretensioner tube in retractor assembly
US11603075B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2021 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Dec 13, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4642
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seatbelt pretensioner system for use in a seatbelt retractor assembly having a spindle and a frame includes a housing adapted for being mounted to the frame and having an interior cavity, a pretensioner tube including a body portion and an exit portion, and having a first tube end in fluid communication with a gas generator and a second tube end in fluid communication with the interior cavity of the housing, a pinion being rotatably mounted in the housing and fixedly coupled to the spindle adapted for taking up seatbelt webbing during pretensioning, a pretensioner rod disposed inside the pretensioner tube, and a stopper disposed between the gas generator and the pretensioner rod. Further, the exit portion of the tube is formed to neck down such that the exit portion is configured to prevent the stopper from passing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.